[mythtv-users] RE:Sanity check for PVR-250 to DVD+R

[Shane Hetzel]

OK, since my resolution is set to a DVD standard (720x480), then I won't
worry too much about the stream type. I know my bitrate is sufficient, and
not too high (4500, or soemthing like that). I plan to play around with
352x480 at 3500 later, to see if there is an appreciable difference to me.
The way I figure it, I can always re-encode the higher-res files, when it
comes time to archive.

Thanks for your time, James.

-Shane

----- Original Message ----- 
From: " James L. Paul" <james at mauibay.net>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Wednesday, December 10, 2003 10:01 PM
Subject: Re: [mythtv-users] RE:Sanity check for PVR-250 to DVD+R


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> On Wednesday 10 December 2003 16:53, Shane Hetzel wrote:
> > Does he need to change his stream type from MPEG2-PS to DVD?
>
> MPEG2-PS _is_ a standard (and most the most common) stream source type for
> creating DVDs. :)
>
> > I've never completely understood the differences in stream types,
> > especially when it pertains to the DVD standard. If I plan to archive my
> > recordings someday, do I need to start doing it as streamtype=DVD?
> > Or doesn't it matter since I'll probably re-encode to remove the
> > commercials, anyway?
>
> Ahh, I see what you mean, the MythTV streamtype setting. A DVD setting for
> that will presumably output an MPEG2-PS stream that happens to be whatever
> resolution and bitrate the firmware thinks is appropriate for DVD. I
haven't
> used that setting, I just use MPEG2=PS and set the bitrate, etc. I want.
For
> all I know I'd get exactly the same results using the DVD setting, I just
> prefer to set the specifics myself. :)
>
> > -Shane
> >
> >
> > ----- Original Message -----
> > From: " James L. Paul" <james at mauibay.net>
> > To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> > Sent: Wednesday, December 10, 2003 4:21 PM
> > Subject: Re: [mythtv-users] RE:Sanity check for PVR-250 to DVD+R
> >
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> > > On Wednesday 10 December 2003 08:31, Couvrette, Jeffrey C. wrote:
> > > > I can't comment on all your settings, but my recommendation is that
you
> > > > encode at 352x480 if you're bitrate is only going to be 3500.  That
way
> >
> > you
> >
> > > > have more information per pixel than if you were to double the
number
> > > > of pixels using 720x480.  If you want to use 720x480, I would
suggest
> > > > using
> >
> > a
> >
> > > > higher bitrate.
> > > >
> > > >
> > > >
> > > > Also, as far as I am aware, if you want to do everything in Linux
and
> >
> > make
> >
> > > > DVD+R's that are playable in standalone DVD players, you will have
to
> > > > re-encode.  I follow the process shown in:
> > >
> > > Not true. There's no need to re-encode the PVR-250 output with the
> >
> > settings we
> >
> > > are talking about. The whole point of this thread is what settings he
> >
> > wants
> >
> > > to use so as to _avoid_ needing to re-encode, and I simply confirmed
his
> > > request for a sanity check.
> > >
> > > There's nothing about using Linux rather than some other platform that
> > > requires you to re-encode video that is already DVD compliant. :)
> >
> > Likewise,
> >
> > > the particular type of DVD writeable disc has no bearing on the video
> >
> > stream
> >
> > > spec.
> > >
> > > > http://www.gossamer-threads.com/perl/mailarc/gforum.cgi?post=92621
> > >
> > > I'm not aware of anything in that thread that concludes that
re-encoding
> >
> > would
> >
> > > be necessary. It's mostly us discussing the particulars of how to
author
> > > a DVD containing compliant captured video. :)
> > >
> > > > >Ok, after reading two days worth of threads, this is
> > > > >what I *think* I need to set my Myth box up for
> > > > >straight PVR-250 MPG to DVD+R archiving. I'm running
> > > > >NTSC on an analog TV with the idea of going digital
> > > > >HDTV in the next two years. If those experienced users
> > > > >could please comment, it would be most appreciated.
> > > > >
> > > > >DEFAULT Profile (although I plan on making LIVE TV and
> > > > >HIGH QUALITY the same. Is this the correct thing to
> > > > >do?)
> > > > >
> > > > >Width 720x480 as that will get me better potential
> > > > >quality than 352X480, correct?
> > > > >
> > > > >Video Compression
> > > > >Codec: MPEG-2 Hardware Encoder
> > > > >Stream Type: MPEG-2 PS
> > > > >Aspect Ratio: 4:3
> > > > >Bitrate: 3500 with a max of 5000
> > > > >
> > > > >Audio Quality
> > > > >Codec: MPEG-2 Hardware Encoder
> > > > >Sampling Rate: 4800
> > > > >Type: Layer II (what's Layer I?)
> > > > >Bitrate: 224
> > > > >Volume: 100%
> > > > >
> > > > >Is this correct or did I miss something for straight
> > > > >from PVR-250 to DVD+R with no reencoding?
> > > > >
> > > > >Thanks!
> > >
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